micromillimetre /mī-krə-milˈi-mē-tər/

1. One millionth of a millimetre (now nanˈomētre; obsolete)
2. One thousandth of a millimetre (non-standard)

• mercury switch
• mercury tilt switch
• mercury vapour lamp
• mercury vapour light
• mercury vapour lights
• mercy
• mercy flight
• mercy flights
• mercy killing
• mercy killings
• mercy on us
• mercy-seat
• mercy-seats
• merdivorous
• mere
• mered
• merel
• merell
• merells
• merels
• merely
• merely Joe
• merengue
• merengues
• mereological